JPH10220950A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator for reducing dissipation electric energy of the refrigerator by improving heat insulation performance of a freezing storage chamber of a drawer type having a plurality of storage containers arranged in a vertical direction without disturbing its serviceability. SOLUTION: Freezing storage chambers 6a, 6b of a drawer type having a plurality of storage containers 10a, 10b arranged in a vertical direction are constituted to return cold air output out of the containers upon finishing of internal cooling of the containers 10a, 10b to a cold air return port 20 disposed in an innermost side of the storage chamber via a gap formed between upper and lower containers 10a and 10b. Thus, the cold air output out of the container is not considerably leaked from inner surfaces of doors 3c, 3d of the chambers 6a, 6b to parts of lower and side surfaces of the storage chamber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a refrigerator,
In particular, it is a forced cooling system in which the inside of the refrigerator is cooled by circulating cool air with a blower, and a frozen storage room is included in one or more storage rooms partitioned for each use temperature range, and the frozen storage room is arranged in the front-back direction The present invention relates to a refrigerator which is a drawer-type freezing storage room having a plurality of storage containers arranged vertically above and below which are taken in and out by sliding.

[0002]

2. Description of the Related Art In general, the structure of a home refrigerator includes, in terms of functions, a box / door which is a main body having a role of a heat insulating box / strength member, and a refrigeration cycle for cooling the inside of the refrigerator. Can be roughly divided into

[0003] The main body and the door are each composed of an outer wall integrally formed by sandwiching a heat insulating material mainly made of urethane foam between an outer box and an outer plate made of a steel plate and an inner box and an inner plate made of a resin. And a partition wall or a partition member which largely divides the inside of the box into a storage room such as a frozen storage room, a refrigerated storage room or a vegetable storage room having a different use temperature range, a cold air passage, and the like. It is composed of interior parts made of resin or heat insulating material such as shelves, storage containers, pockets, etc., which are divided.

[0004] The refrigeration cycle section is used for compressing the refrigerant.
Components installed outside the refrigerator such as a compressor for circulation and a condenser for heat radiation, and components installed outside the refrigerator such as an evaporator for cooling cool air circulating in the refrigerator and a blower for circulating cool air Components, and a refrigerant pipe that connects the components and circulates a refrigerant.

[0005] In household refrigerators other than small ones, cooling in the refrigerator is performed by a forced cooling system in which cool air cooled by an evaporator is circulated to each storage room by a blower and a cool air passage. Then, the heat in the refrigerator taken by the evaporator is carried to a condenser outside the refrigerator by the refrigerant circulating in the refrigeration cycle and released.

[0006] In the structure of each storage room of the refrigerator, a door is opened and closed by rotation about a hinge fixed to one side of the box, and stored items are stored in a shelf in the box or a pocket inside the door. There is a fixed shelf type, and a drawer type in which the door is opened and closed by the same rotation as described above or by sliding in the front and rear direction with respect to the box, and the storage container is moved in and out by sliding in the front and rear direction.

[0007] The drawer type storage room is a type in which one large pivot type door and one or more sliding type storage containers are combined, and the opening and closing of the door and the taking in and out of the storage container are performed separately. And a type in which one or more storage containers and a storage container that slide together when the door is opened and closed are arranged in the storage room.

[0008] Of these, the latter type occupies most of the actual refrigerators because the operation of taking the storage container in and out is simpler and the leakage of cold air due to the opening and closing of the door is small.

The drawer-type storage room is located at the lower half of the box in a normal refrigerator having a high overall height in which a plurality of storage rooms are arranged one above the other, in view of the ease of viewing and taking out the food in the pulled-out state. In addition, in a slightly small and low-height special refrigerator dedicated to frozen storage or vegetable storage, it is used for the entire box.

In a recent ordinary refrigerator having a plurality of storage rooms, a refrigerated storage room having a large number of opening / closing frequencies and an amount and type of stored food is fixed to an upper half of a box body in consideration of ease of use of each storage room. A structure in which a large-sized one room is provided and a drawer-type frozen storage room, a vegetable storage room, and the like are arranged in the lower half has been widely adopted.

[0011] In these refrigerators, the drawer-type frozen storage compartments are arranged in a plurality of storage containers in a vertically overlapping manner in order to make it easier to organize foods and to increase the internal volume of the storage compartments. It is often configured.

In recent refrigerators, there is a strong demand for low power consumption as well as the above-mentioned ease of use. For the latter, the efficiency of refrigeration cycle components such as compressors and the heat insulation performance of boxes have been improved. It is an important technical issue.

[0013] The quality of the heat insulation performance of the box, in other words, the small and large amount of heat penetration of the box, depends on the heat transfer coefficient inside and outside the refrigerator.
Temperature difference and thermal conductivity and surface area of the wall (the larger the amount, the larger the amount of heat penetration), the thickness of the wall (the larger, the smaller the amount of heat penetration)
Is involved.

In the freezer storage room, the temperature inside the refrigerator is about -18 ° C., and the temperature difference between the inside and the outside of the refrigerator is considerably large as compared with other storage rooms in which the temperature inside the refrigerator is at or above freezing point. Although it is slightly larger than the room, the amount of heat penetration is relatively large. For example, when the freezing storage room occupies １ ／ of the storage volume of the entire box, it is said that the heat penetration amount is about の of the entire box.

In the case of a fixed shelf type freezing storage room, which has often been used in previous refrigerators, cold air diffuses into the cross section of each shelf immediately after being discharged from the rear side and flows forward, so that the air velocity is low. In contrast, in the case of a drawer-type frozen storage room, which is often used in recent refrigerators, cold air is discharged mainly from a cool air discharge port provided at the back of the storage room and flows forward while cooling food inside the storage container. Although the wind speed is rather low, if it comes out of the container near the upper end of the front of the container and returns to the cool air return port along the front and bottom of the container, and along the side, the cool air from multiple storage containers may merge along the way. Since the gap between the periphery and the inner surface of the door or the side or lower surface of the storage room is narrow, the wind speed tends to be high.

Therefore, the drawer-type frozen storage compartment has a higher heat transfer coefficient on the inner surface of the door because the wind speed along the inner surface of the door, which becomes the outer wall, etc., and the side and lower surfaces of the storage compartment is higher,
The amount of heat intrusion in the entire storage room also increases.

The large amount of heat entering the storage room requires a large cooling capacity to maintain the target temperature in the refrigerator, which results in an increase in the power consumption of the refrigerator. Therefore, it can be understood that, with regard to recent refrigerators, as a target for reducing the amount of heat infiltration of the box, that is, for improving the heat insulating performance of the box, the focus should be on the drawer type freezer storage room.

Here, regarding the drawer type freezing storage room, the entire structure, the state of the circulation of cool air, the places where the heat intrusion is large and the heat insulation performance is reduced, and examples of conventional countermeasures are shown in FIG. A specific description will be given using the following.

FIG. 10 is a perspective view of the entire conventional refrigerator, in which some doors are opened so that the type of each storage room can be understood. FIG. 11 is a front view of the refrigerator of FIG. 10 with all doors closed and limited to the vicinity of a drawer-type freezer storage room in the lower half of the refrigerator, with the doors omitted, and FIG. 12 shows the same state. FIG. 12 is a longitudinal sectional side view in a section (section AA in FIG. 11) near the box side wall of the lower half of the refrigerator in FIG.

In the concrete description of the conventional refrigerator and the refrigerator of the present invention described later, a common refrigerator having a high overall height, in which a plurality of storage rooms are arranged vertically, is commonly used. Refrigerators with different storage compartment arrangements or special refrigerators with a small overall height, which are dedicated to frozen storage, have drawer-type freezer storage rooms with multiple storage containers arranged vertically. If there are, there are problems with the state of cold air circulation and heat insulation performance of the drawer type freezer storage room,
It is considered that the effects of the present invention are basically the same.

In FIG. 10 to FIG.
Is basically composed of a box 2 and a plurality of doors 3a to 3d, the upper half is a fixed shelf type refrigerated storage room 4, and the lower half is 2
As a drawer type storage room, a vegetable storage room 5 and two-stage frozen storage rooms 6a and 6b are arranged in order from the top.
In addition, the lower frozen storage room 6b of the two-stage frozen storage room
The outside of the storage area at the back side or the lower part, which is the back side of, is a machine room.

The drawer-type frozen storage compartments 6a and 6b include a box side wall 7a, a box bottom wall 7b, and a box back wall 7 of the box 2.
c, the partition wall 8b between the storage rooms and the inner surfaces of the doors 3c and 3d, and the door 3 facing the four circumferences of the front surface of the storage room.
Packings are installed around the inner surface of c and 3d to seal the storage room.

The drawer-type frozen storage compartments 6a and 6b are of a two-stage type, and an intermediate partition 9 for sealing and maintaining the strength of the storage compartment of the doors 3c and 3d is provided at the center of the front of the storage compartment.
The doors 3c and 3d of each stage and the storage containers 10a and 10b form a pair of doors and containers, and are formed by supporting rails 11a and 11b on the side of the container and fixed rails (not shown) on the side of the box 2. It is inserted and removed in such a way that it slides integrally in the longitudinal direction of the body 2.

Behind the back of the vegetable storage room 5 and the upper frozen storage room 6a, an evaporator 13 and a blower (not shown) are arranged via a rear partition member 12, and the cooled cold air 14 is provided.
Is sent from the inside of the rear partition member 12 to the draw-out type freezer storage rooms 6a and 6b through the cool air discharge ports 15a and 15b on the front surface thereof, and the remaining cool air 14 is transferred to the other storage rooms by the box 2 It is sent in by the passage on the back and returns to the inflow side of the evaporator 13 after cooling each storage chamber.

On the other hand, heat taken by the evaporator 13 from the cool air 14 circulating in the refrigerator is discharged from the refrigerator through the refrigerant circulating through the refrigeration cycle by the compressor 16 and the condenser 17 arranged in the machine room 7. Will be released.

The state of the circulation of cool air in the drawer type freezing storage chambers 6a and 6b when the refrigeration cycle is operating is as follows. The cold air 14 is supplied to the rear partition member 12.
Are divided into upper and lower storage containers 10a and 10b, respectively, from the front of the cold air discharge ports 15a and 15b, and are poured downward from the back of the container into the inside. Since the discharged cold air 14 is particularly low-temperature and large in density, It flows while spreading in the lower half of the inside in the width direction.

At this time, the diffusion and mixing proceeds upward and to the left and right while being cooled while hitting the food 18, so that the cool air 14 immediately flows over the entire cross section of the container and flows forward at a relatively low wind speed.

The cool air 14 approaching the front of the container passes through the cool air outflow paths 19a and 19b formed mainly by openings near the upper end of the front of the container and gaps between the front of the container and the inner surfaces of the doors 3c and 3d. Spills down below.

Since the cold air return port 20 of the drawer type freezer storage chambers 6a and 6b is installed downward on the back side of the lower storage vessel 10b, the cool air 14 flowing out of the upper storage vessel 10a is transferred to the cool air outflow path 19a. To lower storage container 1
0b, it merges with the cold air 14 of the lower storage container 10b and returns to the cold air return port 20 from the cold air outflow path 19b mainly through the gap between the container bottom surface and the box body lower wall 7b.

On the side surfaces of the storage containers 10a and 10b, rails 11a and 11b which also serve as support frames extend to the depth of the storage room, and a gap between the storage container 10a and the storage room side surface is reduced.
Although the cool air 14 hardly flows out of the container from the side of the container, since the lower side of the support frame / rails 11a and 11b has the same gap as the cool air outflow paths 19a and 19b, the cool air flows out of the front of the container. Part of the cold air 14 that has flowed out to the paths 19a and 19b flows through the gap between the side surface of the container and the side surface of the storage room.

The clearance between the front surface of the container and the inner surface of the door and the gap between the bottom surface and the side surface of the container and the lower surface and the side surface of the storage room, which are the passages for the cool air 14 flowing out of the container, are set in view of the increase in the internal volume of the storage containers 10a and 10b. Due to the relatively narrow width, the wind speed of the cold air 14 in these passages is considerably higher than in the container or in the previous fixed shelf type freezer storage room.

In addition, almost all of the cold air 14 that has flowed out from the upper storage container 10a flows into gaps along the front, bottom, and side surfaces of the lower storage container 10b. The wind speed is higher than the gap along the container front and door inner surfaces and the container side and storage room side.

In the drawer type freezing storage rooms 6a and 6b, the surfaces of the passages through which the cool air 14 flowing out of the containers flows around the containers are the inner surfaces of the doors and the lower surfaces and side surfaces of the storage rooms.
Of these, the inner surfaces of the doors 3c and 3d are the outer walls whose outer sides are exposed to the outside air, and the box lower surface wall 7b serving as the lower surface of the storage room is the outer wall when the storage room is the lowest stage of the box 2, When the room is not at the bottom, it becomes a partition wall from other storage rooms, and the box side wall 7a, which is the side of the storage room, becomes an outer wall.

When the inner surface is an outer wall, the heat transfer coefficient inside the refrigerator increases due to the high wind speed of the cool air 14 along the inner surface, and the amount of heat that enters the refrigerator from the outside through the heat insulating wall into the refrigerator. Directly increase. When the heat penetration amount is large, that is, when the heat insulation performance is low, it is necessary to increase the cooling capacity of the refrigeration cycle in order to maintain the target temperature in the refrigerator, and eventually the power consumption of the refrigerator is increased.

On the other hand, when the lower surface of the storage room is a partition wall, the high air velocity of the cool air 14 and the increase in the heat transfer coefficient inside the refrigerator do not directly lead to an increase in the amount of heat penetration.

However, the inside temperature of the storage room adjacent to the lower side of the partition wall is higher than the freezing point (often a vegetable storage room and about 5 ° C.). When the transmissivity increases and the amount of heat infiltration through the partition wall increases, the surface temperature on the storage room side below the partition wall decreases to near the freezing point.

This causes problems such as dew condensation and frost formation on the surface of the partition wall in the lower storage room and the storage room becoming too cold when the refrigeration cycle is stopped. Measures such as installing a heating element (usually an electric heater) therein are taken.

The former countermeasure is largely restricted by the thinning of the partition wall and the incorporation of the cold air passage, so that the latter countermeasure is usually taken, thereby directly increasing the electric input for heating and increasing the heating. By increasing the internal heat load in the lower storage room by the heat load in the internal storage, the power consumption of the refrigerator is increased in the same manner as in the case where the amount of heat penetration at the outer wall is increased.

Accordingly, the drawer type freezing storage rooms 6a, 6
Regardless of whether the inner surface of the door b and the lower surface / side surface of the storage room are the outer walls or not, the cold air 14 has a high wind speed and a large amount of heat infiltration in these portions, so that the same effect is exerted on the power consumption of the refrigerator. It turns out that it has.

As described above, in the drawer-type freezing storage room having a plurality of storage containers arranged vertically,
The amount of heat infiltration on the inner surface of the door and on the lower and side surfaces of the storage room, especially on the inner surface facing the lowermost storage container, is one of the causes of increasing the power consumption of the refrigerator. ing.

Measures to reduce the amount of heat entering these portions of the drawer type freezer storage room, that is, improvement measures related to the improvement of the heat insulation performance, include those for the wall structure of the box / door and the partition member and the circulation of cool air. It is considered to be a method.

Improvements to the conventional wall structure include increasing the thickness of the wall and changing the heat insulating material inside the wall to a material having a lower thermal conductivity. However, the former goes against the trend of thinner walls and thinner partitions, which are being promoted in view of increasing the internal volume of the storage room and design, and as the latter, switching from the current urethane foam to vacuum insulation materials. It is conceivable, however, that vacuum insulation materials are expensive and have low reliability, so that they cannot achieve both heat insulation performance and practicality, and are not effective measures.

Further, as an improvement plan with respect to the conventional method of circulating cool air, reduction in the speed of cool air when returning to the passage outside the container and reduction of the storage container as disclosed in Japanese Patent Application Laid-Open No. 7-332835 are disclosed. It is conceivable to significantly change the cooling air circulation by means such as providing a large number of openings on the side and bottom surfaces.

In the former case, the gap between the periphery of the container and the inner surface of the door to the lower surface / side surface of the storage room is widened, but there is a practical problem that the inner volume of the storage container is obviously reduced.

Further, in the latter case of improving the cool air circulation by the storage container, the cool air flows out from the side and bottom surfaces of the storage container, so that the wind speed of the cool air along the front surface outside the container is reduced, and the door facing the air is cooled. It is conceivable that the heat transfer coefficient on the inner surface or the like is reduced, and the amount of heat penetration is reduced to some extent.

However, by providing a large number of openings on the side and bottom surfaces of the storage container, before the countermeasure, the cool air circulated from the back to the front and flowed while cooling the food. It is easy to cause a short-circuit of the cold air flow in which most of the cool air flows out of the container through the through hole before reaching the front of the storage container.

As a result, after the countermeasures, the cooling state of the food in the container becomes uneven, and the temperature difference in the storage room becomes large because the front side is not sufficiently cooled.

[0048]

As described above, a conventional refrigerator having a drawer-type freezer storage room having a plurality of storage containers arranged in a vertical direction is provided from the inner surface of the drawer-type freezer storage room door. It was not possible to improve the heat insulation performance of the lower and side portions of the storage room without causing a problem in practicality, and as a result, there was a problem that the power consumption of the refrigerator could not be reduced.

An object of the present invention is to improve the heat insulation performance of a drawer-type freezing storage room having a plurality of storage containers arranged in a vertical direction without causing a problem in practicality, thereby reducing the power consumption of the refrigerator. An object of the present invention is to provide a refrigerator for reducing the number of refrigerators.

[0050]

In order to achieve the above object, a first type refrigerator according to the present invention has at least one storage room in which cool air for cooling the inside of the refrigerator is circulated. The inner surface except the front surface of the storage room is defined by an outer wall of the box of the refrigerator or a partition wall arranged between the storage rooms, and the front surface is sealed by a door, and is at least included in the storage room. A refrigerator having one or more of said doors and a plurality of vertically arranged storage containers which are taken in and out in the front-rear direction. The cool air flowing out of the storage container is configured to return to the cool air return port disposed on the inner surface of the storage chamber through at least one of the gaps formed between the upper and lower sides of each of the storage containers. Is characterized by

The refrigerator of the second type according to the present invention has at least one circulating cool air for cooling the inside of the refrigerator.
The storage room has an inner surface except for a front surface of the storage room, which is defined by an outer wall of the refrigerator box or a partition wall disposed between the storage rooms, and the front surface is sealed by a door. A refrigerator including at least one door and at least one door and a plurality of vertically arranged storage containers that are put in and out in the front-rear direction. A cool air return port for recovering the cool air that has exited the storage containers after the internal cooling of each storage container is provided at a depth of at least one of the gaps formed between the upper and lower sides of each storage container inside the storage chamber. And a partition plate member extending from the back surface to the front of the storage room front member is provided between the cold air return port and the upper surface of the storage container immediately below the cold air return port, And the cold air return port Characterized in that it is configured to cool air outflow path leading from within the reservoir in the vicinity of the front surface of the storage container above downwardly outside the container is formed.

Further, the refrigerator of the second type extends between the partition plate and the bottom surface of the storage container above, from the front member of the storage room to near the upper portion of the front short portion of the partition plate. It is to install a current plate.

The refrigerator of the third type according to the present invention has at least one circulating cool air for cooling the inside of the refrigerator.
The storage room has an inner surface except for a front surface of the storage room, which is defined by an outer wall of the refrigerator box or a partition wall disposed between the storage rooms, and the front surface is sealed by a door. A refrigerator including at least one door and at least one door and a plurality of vertically arranged storage containers that are put in and out in the front-rear direction. A cool air return port for recovering the cool air that has exited the storage containers after the internal cooling of each storage container is provided at a depth of at least one of the gaps formed between the upper and lower sides of each storage container inside the storage chamber. And extending from the back surface to the storage compartment front member between the cold air return port and the upper surface of the storage container immediately below the cold air return port, and positioned near the storage chamber front face. With opening with opening in A cut plate material is installed, and furthermore, a cool air outflow path is formed near the front surface of the storage container above the cold air return port, so as to form a cool air outflow path from the inside of the storage container to the outside of the container. I do.

Further, the refrigerators of the second and third systems are characterized in that the upper side of the storage room and the inner surface of the storage room at a position facing the side surface near the bottom surface and the back surface of the storage container at the upper side have the upper part. A horizontal peripheral sealing member for sealing a gap with the storage container is provided so as to be substantially parallel to a bottom surface of the storage container above.

Further, the refrigerator of the fourth type according to the present invention is provided with at least one circulating cool air for cooling the inside of the refrigerator.
The storage room has an inner surface except for a front surface of the storage room, which is defined by an outer wall of the refrigerator box or a partition wall disposed between the storage rooms, and the front surface is sealed by a door. A refrigerator including at least one door and at least one door and a plurality of vertically arranged storage containers that are put in and out in the front-rear direction. A cool air return port for recovering the cool air that has exited the storage containers after the internal cooling of each storage container is provided at a depth of at least one of the gaps formed between the upper and lower sides of each storage container inside the storage chamber. And a partition plate member extending from the back surface to the front of the storage room front member is provided between the cold air return port and the upper surface of the storage container immediately below the cold air return port, And the cold air return port An upper partition plate having a length similar to that of the partition plate is installed between the storage container and the bottom surface of the storage container immediately above the cold air return port, and further, a container is provided in the storage container near the front surface of the storage container above the storage container. It is characterized in that it is configured such that a cool air outflow path communicating with the outside downward direction is formed.

Further, in the refrigerator of the fourth type, a rectifying plate member extending from the front member of the storage room to near the front surface of the partition plate member and the upper partition plate member is provided between the partition plate member and the upper partition plate member. To install.

Further, in the refrigerator of the fourth type, the refrigerator is located at a position slightly deeper than the front surface of the upper partition plate and at a position facing the bottom surface and the side surface of the storage container above the upper surface of the upper partition plate. A vertical peripheral sealing member for sealing a gap with the storage container above is provided on the upper surface of the upper partition plate and the side surface of the storage room so as to be substantially parallel to the front surface of the storage room.

Further, the refrigerator of the fifth type according to the present invention has at least one circulating cool air for cooling the inside of the refrigerator.
The storage room has an inner surface except for a front surface of the storage room, which is defined by an outer wall of the refrigerator box or a partition wall disposed between the storage rooms, and the front surface is sealed by a door. A refrigerator including at least one door and at least one door and a plurality of vertically arranged storage containers that are put in and out in the front-rear direction. A cool air return port for recovering the cool air that has exited the storage containers after the internal cooling of each storage container is provided at a depth of at least one of the gaps formed between the upper and lower sides of each storage container inside the storage chamber. And extending from the back surface to the storage compartment front member between the cold air return port and the upper surface of the storage container immediately below the cold air return port, and positioned near the storage chamber front face. With opening with opening in A cutting plate is provided, and an upper partition plate having a length slightly shorter than the partition plate with the opening is provided between the cold air return port and the bottom surface of the storage container immediately above the cold air return port, and A cold air outflow path is formed in the vicinity of the front surface of the storage container to communicate downward from inside the storage container to outside the container.

Further, the refrigerator of the sixth type according to the present invention has at least one cool air circulating for cooling the inside of the refrigerator.
The storage room has an inner surface except for a front surface of the storage room, which is defined by an outer wall of the refrigerator box or a partition wall disposed between the storage rooms, and the front surface is sealed by a door. A refrigerator including at least one door and at least one door and a plurality of vertically arranged storage containers that are put in and out in the front-rear direction. A cool air return port for recovering the cool air that has exited the storage containers after the internal cooling of each storage container is provided at a depth of at least one of the gaps formed between the upper and lower sides of each storage container inside the storage chamber. A partition duct that is arranged on the surface and extends slightly to the front of the storage chamber front member and opens and communicates with the cold air return port is installed, and the partition duct faces the upper and lower surfaces of the partition duct. The storage container is separated from the bottom surface of the storage container and the upper surface of the storage container below, and a projection is formed on the side surface of the partition duct to seal a gap with the side surface of the storage room facing the partition duct, It is characterized in that a cool air outflow path is formed near the front surface of the storage container above the cold air return port and communicates downward from inside the storage container to outside the container.

Further, in the refrigerator of the sixth type, a rectifying plate material extending from the front member of the storage room to the vicinity of the front surface of the partition duct is provided between the upper surface and the lower surface of the partition duct. .

Further, in the refrigerator of the sixth type, at a position slightly closer to the inner surface than the front surface of the partition duct, a position facing the bottom surface and the side surface of the storage container above the upper surface of the partition duct. A vertical peripheral sealing member for sealing a gap with the storage container is provided on the upper surface of the partition duct and the side surface of the storage room so as to be substantially parallel to the front surface of the storage room.

According to the present invention, in the refrigerator of the first type as described above, in the drawer-type freezing storage room including a plurality of storage containers which are put in and out in the front-rear direction and arranged up and down, The circulation state of the cool air that has exited the container after the internal cooling of the container has changed from the conventional state, and the cool air that has exited the container does not flow along the lower and side surfaces of the storage room and the inner surface of the door around the storage container below the cool air return port. It does not flow at all, and it does not flow as much as a conventional refrigerator along the side of the storage room around the storage container and the inner surface of the door above the cold air return port.

As a result, the heat insulation performance on the lower surface and the side surfaces of the drawer-type freezer storage room and the inner surface of the door as a whole is improved, so that the power consumption of the refrigerator can be reduced as compared with the conventional case. In addition, since the cool air that has come out of the container is passed through the gap formed between the upper and lower sides of each storage container that was not particularly used in the past, the cool air return port is also arranged on the back side of the storage room which is not much different from the conventional one, There is no particular practical problem as compared with the related art.

The second and third aspects of the present invention as described above
In the refrigerator of the type, in a drawer-type freezing storage room including a plurality of storage containers arranged vertically and taken out by sliding in the front-rear direction, the cold air that has exited the container after finishing the internal cooling of the storage container, In storage containers above the cold air return, the cold air flow path between the door inner surface and the container front surface mainly passes,
In the storage container below the cool air return port, it gathers near the front of the partition plate and near the opening of the partition plate with openings in a form going almost upward from the vicinity of the front inside the container and merges immediately with the partition plate and the partition plate with openings. The air flows through the gap between the upper storage container and the bottom surface to the back side and returns to the cool air return port.

The partition plate or the partition plate with an opening extends from the back of the storage room to the inside or back of the front member of the storage room, for example, a little in front of the inner surface of the door or the back of the intermediate partition, or to a position reaching them. Since the opening of the partition plate is located slightly in front of the inner surface of the door and the back of the intermediate partition, make sure that the cool air inside the lower storage container does not return to the cool air return port before performing the cooling function sufficiently. The flow of cold air is effectively controlled.

The point that the circulation state of the cool air is different from the conventional one is that the cool air that has flowed out of the storage container does not flow at all along the lower surface / side surface of the storage room and the inner surface of the door around the storage container below the cool air return port. It does not flow as much as the conventional refrigerator along the side of the storage room and the inner surface of the door around the storage container above the cold air return port. For the same reason as in the first method, the power consumption of the refrigerator is reduced. Can be reduced.

Further, a partition plate or a partition plate with an opening is installed in a gap formed between the upper and lower sides of each storage container which has not been particularly used in the past, and a cool air return port is provided on the back of the storage room which is not much different from the conventional one. Since they are arranged, there is no particular problem of practicality as compared with the conventional method, as in the first method.

Further, in the above-mentioned refrigerator of the second type according to the present invention, between the partition plate and the bottom surface of the storage container immediately above, from the inner surface of the door or from the back of the intermediate partition, slightly above the front of the partition plate. By installing a straightening plate material extending to the storage container, the cool air from the upper and lower storage containers is deflected before merging, flows along the partition plate material, and the turbulence and ventilation loss due to the merging of the cool air are reduced, so the invention This is preferable because the intended circulation state is easily realized.

Further, in the refrigerators of the second and third systems of the present invention described above, the side of the storage room and the back of the storage room at positions opposite to the side near the bottom surface and the back of the storage container immediately above the partition plate. By installing a horizontal peripheral seal member that seals the gap with the storage container, it is possible to reduce the cooling air that has finished cooling the inside of the upper storage container from partially diverting from the back to the side of the storage room around the container. Therefore, the circulation state intended in the invention is easily realized, which is preferable.

In the refrigerator according to the fourth to sixth systems of the present invention as described above, in the drawer-type freezing storage room having a plurality of storage containers arranged vertically in and out of the front-rear direction, the storage containers Cold air that has exited the container after internal cooling passes mainly through the cold air outflow path between the inside of the door and the front of the container in the storage container above the cold air return port, and inside the container in the storage container below the cool air return port. From the vicinity of the front to the upper part, it gathers near the front of the partition plate and the upper partition plate, near the opening of the partition plate with openings, and near the front of the partition duct, merges and joins between the partition plate and the upper partition plate and with an opening The air flows between the partition plate and the upper partition plate and inside the partition duct toward the back side, and returns to the cool air return port.

The partition plate, the upper partition plate, the partition plate with an opening, and the partition duct extend from the back of the storage room to a position slightly in front of the inner surface of the door or the back of the intermediate partition or to a position reaching them. The opening is located slightly in front of the inside of the door or the back of the middle partition.

In these configurations, the partition plate, the partition plate with the opening, and the lower surface of the partition duct do not return to the cool air return port before the cool air in the lower storage container does not sufficiently cool. The upper partition plate and the upper surface of the partition duct reduce the amount of cold air that has been internally cooled in the upper storage container from partially diverting from the back to the side of the storage room around the container. It acts to control most of the cool air to flow through the cool air outflow path between the door inner surface and the container front surface.

The point that the circulation state of the cool air is different from the conventional one is that the cool air which has flowed out of the container does not flow at all along the lower surface and the side surfaces of the storage room around the storage container below the cool air return port and along the inner surface of the door. In the storage container above the return port, along the inner surface of the door, it is almost the same as the conventional refrigerator but hardly flows along the side, and for the same reason as the first to third methods,
The power consumption of the refrigerator can be made smaller than before.

Further, a partition plate and an upper partition plate, an upper partition plate with an opening, and an upper partition plate and a partition duct are installed in a gap formed between the upper and lower sides of each storage container, which has not been particularly used in the past, and a cool air return port is also provided. Since it is arranged on the inner surface of the storage room, which is not much different from the conventional method, there is no particular practical problem as compared with the conventional method as in the first to third methods.

Further, in the above-described refrigerators of the fourth and sixth systems of the present invention, between the partition plate and the upper partition plate or between the upper and lower surfaces of the partition duct, from the inner surface of the door or the back of the intermediate partition. It is better to install a rectifying plate that extends from near the front of the partition plate and the upper partition plate or near the front of the partition duct, so that the cool air from the upper and lower storage containers is deflected before merging and along the partition plate. Since turbulence and ventilation loss due to the merging of the flowing cool air are reduced, the circulation state intended in the present invention is easily achieved, which is preferable.

Further, in the refrigerators of the fourth to sixth systems of the present invention described above, at a position slightly closer to the back than the front surface of the upper partition plate or the partition duct, just above the upper surface of the upper partition plate or the partition duct. It is better to install a vertical peripheral seal member that seals the gap between the storage container and the upper partition plate or the upper surface of the partition duct facing the bottom and side surfaces of a certain storage container on the side of the storage room. It is possible to reduce the possibility that the cooled cool air is partially diverted from the back to the side of the storage room around the container or from the cold air outflow path between the inner surface of the door and the front of the container to the side of the storage room around the container. Therefore, the circulation state intended by the invention is easily realized, which is preferable.

[0077]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A refrigerator according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a second embodiment of the present invention.
FIG. 3 is a longitudinal sectional side view of a section close to the side wall of the box, limited to the periphery of the drawer-type freezer storage room in the lower half of the refrigerator according to the first embodiment of the present invention. .
FIG. 2 is a front view of the refrigerator in the same state as that of FIG.

That is, this is a forced cooling type refrigerator including a drawer type freezing storage room having a plurality of storage containers arranged vertically, and cool air is returned to gaps formed between the upper and lower storage containers of the freezer storage room. This refrigerator has a mouth and a partition plate, and has a cool air outflow path formed in the front of the storage container above the cool air return port.

The same applies to the conventional refrigerator described above and the refrigerator according to another embodiment of the present invention described later. However, a drawer-type refrigerator is used in a general refrigerator having a plurality of storage rooms arranged vertically and having a high overall height. Is a configuration in which the door and the storage container slide integrally in two stages vertically.

Since the basic structure of the refrigerator except for the parts related to the present invention is almost the same as that of the conventional refrigerator described above, the same reference numerals are given to the components of the basic structure. And a duplicate description will be omitted.

As shown in FIGS. 1 and 2, the first embodiment of the present invention
In the refrigerator of the embodiment, the storage container 10a and the storage container 1
In a gap formed between the upper and lower sides of the rear part 0b, a cool air return port 20 is projected toward the rear side and penetrates through the rear partition member 12 to protrude forward and open.

Then, the partition plate 21 is connected to the cold air return port 20.
And the upper surface of the lower storage container 10b extends from the rear partition member 12 to a position slightly behind the rear surface of the intermediate partition 9 which is one of the storage chamber front members.

Near the front surface of the upper storage container 10a, a cool air outflow path 19a is formed in the same manner as in a conventional refrigerator, and extends from the inside of the container to the outside of the container. No outflow route has been formed.

When the refrigeration cycle is operating, the cold air 14 which has been cooled inside the storage containers 10a and 10b mainly flows out of the upper storage container 10a from the upper end on the front side and flows out. It reaches the rear surface of the intermediate partition 9 through the path 19a, and reaches the rear surface of the intermediate partition 9 from the vicinity of the front inside the container to the rear of the intermediate partition 9 in the lower storage container 10b, where it joins there and joins the partition plate 21 and the upper plate. It flows through the gap between the bottom surface of the storage container 10a and the back surface side and returns to the cool air return port 20.

The partition plate member 21 extends from the front surface of the rear partition member 12 at the back inside the storage chamber to a little before the rear surface of the intermediate partition 9, and also on the upper surface of the lower storage container 10 b (generally, a cold air discharge port). Is located above the upper surface of the storage container of interest), so that after the cool air 14 spreads from the back to the vicinity of the front inside the lower storage container 10b and performs a sufficient cooling action of the food 18, It is effectively controlled so as to be directed toward the upper partition plate member 21, and there is no problem such as a short-circuit of the cool air flow occurring in the lower storage container 10 b.

In the upper storage container 10a, as in the conventional refrigerator, most of the cool air 14 discharged from the cool air discharge port 15a exits the container from the upper end of the front surface after cooling the inside of the container. It is controlled so as to flow down the cool air outflow path 19a downstream.

Thus, the cool air 14 that has come out of the container is
It does not flow at all along the lower surface (box lower surface wall 7b) / side surface and the inner surface of the door (the inner surface of the door 3d) facing the periphery of the lower storage container 10b, and the inner surface of the door (door) in the upper storage container 10a. 3c) and along the side of the storage room, the flow is similar to that of a conventional refrigerator. As a whole, the drawer-type freezer storage room has a reduced heat transfer coefficient on the lower surface and side surfaces of the storage room and the inner surface of the door, and has thermal insulation. Since the performance is improved, the power consumption of the refrigerator can be finally reduced as compared with the conventional case.

In this case, the partition plate member 21 is not particularly used in the conventional refrigerator, and is not used for the storage containers 10a and 10a.
0b, and the cold air return port 20 can also be arranged slightly deeper than the conventional refrigerator but in the interior of the storage room, which faces forward but does not change much. Nothing happens.

Therefore, according to the refrigerator of this embodiment, the heat insulation performance from the inner surface of the drawer-type freezer storage room door to the lower surface and the side surface of the storage room can be improved without causing a problem in practicality. The amount can be reduced.

FIG. 3 shows a refrigerator according to the second embodiment of the present invention shown in FIGS. 1 and 2 in which a rectifying member is further provided on the back of an intermediate partition which is one of the front members of the storage room. FIG. 7 is a longitudinal sectional side view in a cross section close to a box side wall of a lower half portion of a refrigerator according to a second embodiment of the present invention.

As shown in FIG. 3, in the refrigerator according to the second embodiment of the present invention, the rectifying plate member 22 extending from the back surface of the intermediate partition 9 to a position slightly above the front surface of the partition plate member 21 is provided.
Is installed. By installing the current plate 22, the cool air 14 that has flowed out of the containers from the upper storage container 10 a and the lower storage container 10 b hits the current plate 22 before being merged, and is deflected in the depth direction. It merges while flowing along.

Thus, the turbulence and the ventilation loss due to the merge of the cool air 14 are reduced, so that the cool air circulation state intended in the present invention described in the first embodiment can be easily realized.
In addition, the rectifying plate member 22 on the back side of the intermediate partition 9 is installed at a position not particularly used in the conventional refrigerator similarly to the partition plate member 21, so that a problem of practicality arises as compared with the conventional case. Not even.

Therefore, even in the refrigerator of this embodiment, the heat insulation performance from the inner surface of the drawer-type freezer storage room door to the lower surface and side surfaces of the storage room can be improved without causing a problem in practicality. The amount can be reduced.

FIG. 4 shows a second embodiment of the refrigerator of the present invention shown in FIG. 1 and FIG. 2, in which a horizontal peripheral sealing member is further provided on the side and inside of the storage room facing the storage container above the partition plate. FIG. 11 is a longitudinal sectional side view of a refrigerator installed in a cross section close to a box side wall of a lower half portion of the refrigerator according to a third embodiment of the present invention.

As shown in FIG. 4, in the refrigerator according to the third embodiment of the present invention, the side of the storage room at the position opposed to the side near the bottom of the upper storage container 10a and the back of the storage room (the rear partition) A horizontal peripheral seal member 23 for sealing so as to narrow the gap with the container is provided on the front surface of the member 12).

By installing the horizontal peripheral seal member 23, it is possible to reduce the possibility that a part of the cold air 14 which has cooled the inside of the upper storage container 10a will go out of the container from the back of the container and bypass to the side of the storage room. be able to.

Thus, the flow of the cool air along the side of the storage room opposite to the side of the upper storage container 10a is also smaller than that of the conventional refrigerator, so that the circulation state intended by the present invention described in the first embodiment is reduced. It becomes easier to realize in a more preferable form.

Further, since the horizontal peripheral seal member 23 is installed on the side of the storage room near the bottom surface of the upper storage container 10a and on the back of the storage room, it does not become obstructive when the door of the refrigerator is opened or closed, or is noticeable from the outside. In addition, there is no particular practical problem as compared with the related art.

Therefore, even in the refrigerator of this embodiment, the heat insulation performance from the inner surface of the drawer-type freezer storage room door to the lower surface and the side surface of the storage room can be improved without causing a problem in practicality. The amount can be reduced.

In the refrigerator shown in FIGS. 1, 3 and 4, when the doors 3c and 3d are single doors and the intermediate partition 9 is not provided, the partition plate member 21 is provided on the front of the storage room. It is configured to extend slightly to the inner surface of the other one door, that is, the front side, and the circulation state of the cool air 14 is the same as that in the case where the intermediate partition 9 is provided.

As described above, according to the refrigerator of the second type of the present invention, there is a problem in the practicality in improving the heat insulating performance from the inner surface of the door of the drawer type freezer storage room to the lower surface and side surfaces of the storage room. Therefore, the power consumption of the refrigerator including the drawer-type freezing storage room can be reduced.

FIG. 5 is a longitudinal sectional side view of a refrigerator according to a third embodiment of the present invention, in which a lower half of the refrigerator according to a fourth embodiment of the present invention has a cross section close to a side wall of a box body. . That is,
A forced-cooling refrigerator including a drawer-type freezer storage room having a plurality of storage containers arranged vertically, and a partition formed with a cool air return port and an opening in a gap formed between the upper and lower storage containers of the freezer storage room. This is a refrigerator in which a plate material is installed and a cool air outflow path is formed on the front surface of the storage container above the cool air return port.

As shown in FIG. 5, in the refrigerator according to the fourth embodiment of the present invention, compared with the refrigerator according to the first embodiment shown in FIGS.
The installation / forming position of the storage compartment is the same, but instead of the partition plate 21, a partition plate 24 with an opening is provided between the cold air return port 20 and the upper surface of the lower storage container 10b from the rear partition member 12 to one of the storage room front members. The intermediate partition 9 is extended slightly to the back of the intermediate partition 9, and an opening 25 is provided in the partition plate member 24 with an opening at a position close to the rear of the intermediate partition 9.

As shown in FIG. 5, it is preferable that the opening 25 is formed in a stepped shape of a plate material and provided in the stepped portion. By adopting such a configuration, a portion of the partition plate member 24 with the opening on the back side from the opening 25 plays the role of the partition plate member 21 of the first embodiment shown in FIGS. The portion on the front side of the opening 25 of the partition plate 24 is the rectifying plate 22 of the second embodiment shown in FIG.
Therefore, the same circulation state of the cool air 14 as in the first and third embodiments can be realized.

The partition plate 24 with openings does not cause any practical problem as compared with the conventional one, similarly to the partition plate 21 and the rectifying plate 22 of the refrigerator of the second embodiment in FIG.

Therefore, according to the refrigerator of the present embodiment, the heat insulation performance from the inner surface of the drawer-type freezer storage door to the lower surface and the side surface of the storage room can be improved without causing a problem in practicality, and the power consumption of the refrigerator can be improved. The amount can be reduced.

FIG. 6 shows the third embodiment of the present invention shown in FIG.
In the case where the door of the drawer-type freezer storage room is a single rotating type with respect to the refrigerator of the above-mentioned type, the lower half of the refrigerator according to the fifth embodiment of the present invention has a box body side wall. It is a longitudinal side view in a close cross section.

As shown in FIG. 6, in the refrigerator according to the fifth embodiment of the present invention, since the number of doors 3c of the freezing storage rooms 6a and 6b is one, the front member of the storage room is the fourth member of FIG. Since only the door 3c is provided instead of the intermediate partition 9 included in the refrigerator of the embodiment, the partition plate member 24 having the opening is provided with the cold air return port 2.
The shape extends from the rear partition member 12 to slightly before the inner surface of the door 3 between 0 and the upper surface of the lower storage container 10b.

The circulation state of the cool air 14 of the refrigerator according to the fifth embodiment is clearly the same as that of the refrigerator according to the fourth embodiment shown in FIG. The heat insulation performance from the inner surface of the drawer-type freezer storage door to the lower surface and the side surface of the storage room can be improved without causing a problem, and the power consumption of the refrigerator can be reduced.

As described above, according to the refrigerator of the third type of the present invention, there is a problem in the practicality in improving the heat insulation performance from the inner surface of the door of the drawer type freezer storage room to the lower surface and the side surface of the storage room. Therefore, the power consumption of the refrigerator including the drawer-type freezing storage room can be reduced.

FIG. 7 is a longitudinal sectional side view of a refrigerator according to a fourth embodiment of the present invention, in which a lower half of a refrigerator according to a sixth embodiment of the present invention has a cross section close to a side wall of a box body. . That is,
A refrigerator of a forced cooling type including a drawer type freezing storage room having a plurality of storage containers arranged vertically, and a cold air return port and a partition plate material are provided in a gap formed between upper and lower storage containers of the freezer storage room. This refrigerator has an upper partition plate member and a cold air outflow path formed on the front surface of the storage container above the cold air return port.

As shown in FIG. 7, the refrigerator according to the sixth embodiment of the present invention is different from the refrigerator according to the first embodiment shown in FIGS. The installation / formation position of the outflow path 19a is the same, but the upper partition plate 26 is newly formed so as to be approximately the same length as the partition plate 21 between the cold air return port 20 and the bottom surface of the upper storage container 10a. is set up.

With this configuration, the cool air 14 from the upper storage container 10a is mainly discharged from the cool air outflow path 19
a to the back of the intermediate partition 9, which is one of the front members of the storage room, and cool air 14 from the lower storage container 10b.
Reaches the rear surface of the intermediate partition 9 from the vicinity of the front surface inside the container directly upward, and joins the partition plate material 21 there.
It flows through the gap between the upper partition plate member 26 and the rear side to return to the cool air return port 20.

Since the partition plate 21 has the same dimensions and position as those of the first embodiment shown in FIGS. 1 and 2, it is effectively controlled so that the cold air 14 of the lower storage container 10b does not cause a shortcut. I do.

The upper partition plate 26 has the same length as the partition plate 21 and is located between the cool air return port 20 and the bottom surface of the upper storage container 10a. 14 also flows through the intermediate partition 9 slightly behind the rear of the intermediate partition 9.

As a result, the amount of the cold air 14 that goes out of the container from the back of the upper storage container 10a and bypasses the bottom of the container and the side of the storage chamber is likely to be reduced due to the longer bypass path.

Therefore, in the upper storage container 10a, most of the cool air 14 discharged from the cool air discharge port 15a exits the container from the upper end of the front surface and cools down after cooling the inside of the container, as in the conventional refrigerator. It is controlled to flow out the outflow path 19a downstream.

As a result, the cool air 14 that has come out of the container is
It does not flow at all along the lower surface (box lower surface wall 7b) / side surface and the inner surface of the door (the inner surface of the door 3d) facing the periphery of the lower storage container 10b, and the inner surface of the door (door) in the upper storage container 10a. 3c), which is similar to that of a conventional refrigerator but does not flow much along the side of the storage room. As a result, the power consumption of the refrigerator can be reduced as compared with the conventional case.

In this case, the partition plate member 21 and the upper partition plate member 26 are provided in the gap between the upper and lower storage containers 10a and 10b, which are not particularly used in the conventional refrigerator. Because it is located slightly above and forward but not much different in the storage room,
There is no particular practical problem as compared with the related art.

Therefore, according to the refrigerator of the present embodiment, the heat insulation performance from the inner surface of the drawer type freezer storage room door to the lower surface and the side surface of the storage room can be improved without causing a problem in practicality. Can be reduced.

FIG. 8 shows a fourth embodiment of the refrigerator according to the present invention shown in FIG. 7, in which a rectifying member and a storage container above an upper partition plate are provided on the back of an intermediate partition which is one of the front members of the storage room. A vertical side seal in a cross section close to a box side wall of a lower half part of a refrigerator according to a seventh embodiment of the present invention, further comprising a vertical peripheral seal member provided on an opposing upper partition plate and a storage room side surface. FIG.

As shown in FIG. 8, in the refrigerator according to the seventh embodiment of the present invention, the rectifying plate member 22 shown in FIG.
Further, a vertical peripheral sealing member 27 is provided at a position slightly closer to the back than the front surface of the upper partition plate member 26 to seal the gap between the bottom surface and the side surface of the upper storage container 10a so as to reduce the gap between the upper partition plate member 26 and the upper partition plate member 26. It is installed on the side of the room.

Among these, the rectifying plate member 22 is, like the refrigerator of the second embodiment in FIG.
a, 10b acts to reduce turbulence and ventilation loss due to the confluence of the cold air 14, and the vertical peripheral seal member 27
Since the effect of reliably reducing the amount of the partial cold air 14 that bypasses the side of the storage room around the container from the back of the upper storage container 10a is performed, the circulation state intended in the present invention is easily achieved, which is preferable.

As described in the description of the refrigerator according to the second embodiment in FIG. 3, the rectifying plate member 22 has no problem in practicality, and the vertical peripheral sealing member 27 is also provided in the third embodiment in FIG. There is no particular problem in practicality for the same reason as the horizontal peripheral seal member 23 described in the description.

Therefore, even in the refrigerator of this embodiment, the heat insulation performance from the inner surface of the drawer-type freezer storage room door to the lower surface and the side surface of the storage room can be improved without causing a problem in practicality. The amount can be reduced.

Further, in the refrigerator shown in FIGS.
When c and 3d are one door and the intermediate partition 9 is not provided, the partition plate 21 and the upper partition plate 26
It is configured to extend to the inner surface of one door, which is another one of the front members of the storage room, and slightly forward, and the circulation state of the cool air 14 is the same as that in the case where the intermediate partition 9 is provided.

As described above, according to the refrigerator of the fourth type of the present invention, there is a problem in the practicality in improving the heat insulation performance from the inner surface of the door of the drawer type freezer storage room to the lower surface and side surfaces of the storage room. Therefore, the power consumption of the refrigerator including the drawer-type freezing storage room can be reduced.

FIG. 9 is a longitudinal sectional side view of a refrigerator according to a sixth embodiment of the present invention, in which a lower half of the refrigerator according to the eighth embodiment of the present invention has a cross section close to the side wall of the box. . That is,
A forced-cooling refrigerator including a drawer-type freezing storage room having a plurality of storage containers arranged vertically, a cool air return port and a partition duct are provided in a gap formed between the upper and lower storage containers of the freezing storage room. The refrigerator is provided with a cold air outflow path formed in front of the storage container above the cold air return port.

As shown in FIG. 9, in the refrigerator according to the eighth embodiment of the present invention, compared with the refrigerator according to the sixth embodiment shown in FIG. 7, the cold air return port 20 and the cold air outflow path 19a are provided.
Although the formation position and the like are the same, a partition duct 28 is installed at a similar size and position in place of the partition plate 21 and the upper partition plate 26, and the side of the partition duct 28 has a gap between the opposite side of the storage room. A projecting portion 29 for sealing is formed.

By adopting such a configuration, the upper and lower surfaces of the partition duct 28 play substantially the same role as the partition plate 21 and the upper partition plate 26 in FIG. 7, so that the same cool air as in the refrigerator of the sixth embodiment is used. Fourteen circulating states can be realized. In addition, the partition duct 28 is a partition plate 21 shown in FIG.
And the upper partition plate member 26, there is no particular problem of practicality as compared with the related art.

Therefore, according to the refrigerator of the present embodiment, the heat insulating performance from the inner surface of the drawer-type freezer storage room door to the lower surface and the side surface of the storage room can be improved without causing a problem in practicality. The amount can be reduced.

In the refrigerator of FIG. 9, doors 3c and 3
When d is a single door and the intermediate partition 9 is not provided, the partition duct 28 is configured to extend to the inner surface of the single door, which is another one of the storage room front members, to be slightly in front of the door. The circulation state of 14 is the same as the case where the intermediate partition 9 is provided.

As described above, according to the refrigerator of the sixth system of the present invention, there is a problem in practicality in improving the heat insulation performance from the inner surface of the door of the drawer type freezer storage room to the lower surface and side surfaces of the storage room. Therefore, the power consumption of the refrigerator including the drawer-type freezing storage room can be reduced.

In the description of the refrigerator in each of the above embodiments, a specific refrigerator in which a plurality of storage rooms are arranged vertically and a drawer-type freezer storage room is a two-stage lowermost one in a normal refrigerator having a high overall height. Although it was carried out only in cases, even if it is a normal refrigerator with a different arrangement of storage rooms or a special refrigerator with a small overall height that is dedicated to frozen storage, drawer-type frozen storage rooms are arranged vertically. It is apparent that the effect of each method of the present invention can be similarly expected if the configuration includes a plurality of storage containers.

Although the description of the refrigerator in each of the above embodiments has been limited to the refrigerators of the second, third, fourth and sixth types of the present invention, the state of circulation of cool air peculiar to the present invention is described. Even if the fifth system of the present invention has a slightly different configuration for obtaining the effects of the first system of the present invention or the present invention,
Since the same circulating state of the cool air inside the refrigerator as that of the above-mentioned other systems is realized, it is clear that the same effect as that of the above-mentioned other systems can be expected.

[0136]

According to the present invention, in a forced cooling type refrigerator including a drawer type freezing storage room having a plurality of storage containers arranged vertically, a drawer type freezer storage room door inner surface to a storage room lower surface.・ Insulation performance for the side part
Since the practicability can be improved without causing a problem, the power consumption of the refrigerator including the drawer-type frozen storage room can be reduced.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view of a lower half of a refrigerator according to a first embodiment of the present invention in a cross section close to a side wall of a box.

FIG. 2 is a front view of the refrigerator in the same state as that of FIG.

FIG. 3 is a longitudinal sectional side view of a lower half of a refrigerator according to a second embodiment of the present invention in a cross section close to a box side wall.

FIG. 4 is a vertical sectional side view of a lower half of a refrigerator according to a third embodiment of the present invention in a cross section close to a box side wall.

FIG. 5 is a vertical sectional side view of a lower half of a refrigerator according to a fourth embodiment of the present invention in a cross section close to a box side wall.

FIG. 6 is a longitudinal sectional side view of a lower half of a refrigerator according to a fifth embodiment of the present invention in a section close to a box side wall.

FIG. 7 is a longitudinal sectional side view of a lower half of a refrigerator according to a sixth embodiment of the present invention in a cross section close to a box side wall.

FIG. 8 is a longitudinal sectional side view of a lower half of a refrigerator according to a seventh embodiment of the present invention in a cross section close to a box side wall.

FIG. 10 is a perspective view of the entire conventional refrigerator.

11 is a front view of the refrigerator of FIG. 10 from which a lower half door is omitted.

FIG. 12 is a longitudinal sectional side view taken along section AA in FIG. 11;

[Explanation of symbols]

1 ... refrigerator, 2 ... box, 3a-3d ... door, 6a, 6b ...
Drawer-type freezer storage room, 7a-7c ... box body side, lower surface, back wall, 8a, 8b ... partition wall, 9 ... intermediate partition, 1
0a, 10b ... storage container, 14 ... cold air, 15a, 15b ...
Cold air discharge ports, 19a, 19b: Cold air outflow path, 20: Cold air return port, 21: Partition plate material, 22: Rectifying plate material, 23 ...
Horizontal peripheral sealing member, 24 ... partition plate with opening, 25
... Opening, 26 ... Top partition plate material, 27 ... Vertical peripheral sealing member, 28 ... Partition duct, 29 ... Protrusion

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] March 24, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view of a lower half of a refrigerator according to a first embodiment of the present invention in a cross section close to a side wall of a box.

FIG. 2 is a front view of the refrigerator in the same state as that of FIG.

FIG. 3 is a longitudinal sectional side view of a lower half of a refrigerator according to a second embodiment of the present invention in a cross section close to a box side wall.

FIG. 4 is a vertical sectional side view of a lower half of a refrigerator according to a third embodiment of the present invention in a cross section close to a box side wall.

FIG. 5 is a vertical sectional side view of a lower half of a refrigerator according to a fourth embodiment of the present invention in a cross section close to a box side wall.

FIG. 6 is a longitudinal sectional side view of a lower half of a refrigerator according to a fifth embodiment of the present invention in a section close to a box side wall.

FIG. 7 is a longitudinal sectional side view of a lower half of a refrigerator according to a sixth embodiment of the present invention in a cross section close to a box side wall.

FIG. 8 is a longitudinal sectional side view of a lower half of a refrigerator according to a seventh embodiment of the present invention in a cross section close to a box side wall.

FIG. 9 is a vertical cross-sectional side view of a lower half of a refrigerator according to an eighth embodiment of the present invention in a cross section close to a side wall of a box.

FIG. 10 is a perspective view of the entire conventional refrigerator.

11 is a front view of the refrigerator of FIG. 10 from which a lower half door is omitted.

FIG. 12 is a longitudinal sectional side view taken along section AA in FIG. 11;

[Description of Signs] 1 ... Refrigerator, 2 ... Box, 3a-3d ... Doors, 6a, 6b ...
Drawer-type freezer storage room, 7a-7c ... box body side, lower surface, back wall, 8a, 8b ... partition wall, 9 ... intermediate partition, 1
0a, 10b ... storage container, 14 ... cold air, 15a, 15b ...
Cold air discharge ports, 19a, 19b: Cold air outflow path, 20: Cold air return port, 21: Partition plate material, 22: Rectifying plate material, 23 ...
Horizontal peripheral sealing member, 24 ... partition plate with opening, 25
... Opening, 26 ... Top partition plate material, 27 ... Vertical peripheral sealing member, 28 ... Partition duct, 29 ... Protrusion

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor: Kenji Usui 800, Tomita, Ohira-cho, Shimotsuga-gun, Tochigi Pref.

Claims (12)

[Claims] 1. A refrigerator having at least one storage room for circulating cool air for cooling the inside of the refrigerator, wherein the storage room has an inner surface except for a front surface of the storage room or an outer wall of a box of the refrigerator or between the storage rooms. A plurality of vertically arranged storage compartments that are partitioned by an arranged partition wall, the front surface is sealed with a door, and at least a frozen storage compartment included in the storage compartment is taken in and out of one or more of the doors in the front-rear direction. In the refrigerator including the storage container, the frozen storage room, at least in the gap formed between the upper and lower sides of each of the storage containers, the cold air exiting the storage containers after finishing the internal cooling of each of the storage containers A refrigerator, wherein the refrigerator is configured to return to a cool air return port disposed on the inner surface of the storage chamber through one of the storage compartments. 2. The refrigerator has at least one storage room through which cool air for cooling the inside of the refrigerator is circulated, wherein the storage room has an inner surface other than a front surface of the storage room, the outer wall of the box of the refrigerator or between the storage rooms. A plurality of vertically arranged storage compartments that are partitioned by an arranged partition wall, the front surface is sealed with a door, and at least a frozen storage compartment included in the storage compartment is taken in and out of one or more of the doors in the front-rear direction. In the refrigerator comprising: a storage container, wherein the frozen storage compartment is formed between the upper and lower sides of each of the storage containers, wherein a cold air return port for recovering the cold air that has exited the storage containers after the internal cooling of each of the storage containers is completed. And at least one of the gaps is disposed on the inner surface of the storage chamber inside the storage chamber, and between the cold air return port and the upper surface of the storage container immediately below the cold air return port. Of the storage room front member A partition plate extending to the near side is provided, and a cold air outflow path is formed near the front surface of the storage container above the cold air return port, the cold air outflow path communicating from the inside of the storage container to the outside of the container in a downward direction. Refrigerator. 3. A refrigerator having at least one storage room for circulating cool air for cooling the inside of the refrigerator, wherein the storage room has an inner surface other than a front surface of the storage room, the outer wall of the box of the refrigerator or between the storage rooms. A plurality of vertically arranged storage compartments that are partitioned by an arranged partition wall, the front surface is sealed with a door, and at least a frozen storage compartment included in the storage compartment is taken in and out of one or more of the doors in the front-rear direction. In the refrigerator comprising: a storage container, wherein the frozen storage compartment is formed between the upper and lower sides of each of the storage containers, wherein a cold air return port for recovering the cold air that has exited the storage containers after the internal cooling of each of the storage containers is completed. And at least one of the gaps is disposed on the inner surface of the storage chamber inside the storage chamber, and between the cold air return port and the upper surface of the storage container immediately below the cold air return port. Storage room front members A partition plate with an opening is provided which extends in the vicinity of the front of the storage chamber and has an opening at a position close to the front of the storage chamber, and further, from the inside of the storage container to the outside of the container in the vicinity of the front of the storage container above the cold air return port The refrigerator is configured such that a cold air outflow path leading to the refrigerator is formed. 4. The rectifying plate member according to claim 2, further comprising a rectifying plate member extending from the front member of the storage chamber to a position near a position above a front end of the partition plate member, between the partition plate member and the bottom surface of the storage container. Refrigerator characterized by being installed. 5. The storage room according to claim 2, wherein the storage room side surface and the back surface of the storage room at a position facing a side surface near the bottom surface and a back surface of the storage container above and the back surface of the storage room. A refrigerator, wherein a horizontal peripheral sealing member for sealing a gap with a storage container is provided so as to be substantially parallel to a bottom surface of the storage container above the storage container. 6. A refrigerator having at least one storage room for circulating cool air for cooling the inside of the refrigerator, wherein the storage room has an inner surface other than a front surface of the storage room, the outer wall of the box of the refrigerator or between the storage rooms. A plurality of vertically arranged storage compartments that are partitioned by an arranged partition wall, the front surface is sealed with a door, and at least a frozen storage compartment included in the storage compartment is taken in and out of one or more of the doors in the front-rear direction. In the refrigerator comprising: a storage container, wherein the frozen storage compartment is formed between the upper and lower sides of each of the storage containers, wherein a cold air return port for recovering the cold air that has exited the storage containers after the internal cooling of each of the storage containers is completed. And at least one of the gaps is disposed on the inner surface of the storage chamber inside the storage chamber, and between the cold air return port and the upper surface of the storage container immediately below the cold air return port. Of the storage room front member A partition plate extending to the front is provided, and an upper partition plate having a length similar to that of the partition plate is provided between the cold air return port and the bottom surface of the storage container immediately above the cold air return port. The refrigerator is characterized in that a cool air outflow path is formed in the vicinity of the front surface of the storage container above and in a downward direction from inside the storage container to outside the container. 7. The rectifying plate member according to claim 6, wherein a rectifying plate member is provided between the partition plate member and the upper partition plate member, the rectifying plate member extending from the front member of the storage room to near the front surface of the partition plate member and the upper partition plate member. A refrigerator characterized by the following. 8. The storage chamber according to claim 6, wherein the upper partition plate is located at a position slightly closer to the inner surface than the front surface of the upper partition plate, and the upper surface of the upper partition plate at a position facing the bottom surface and the side surface of the storage container above. A refrigerator, wherein a vertical peripheral sealing member for sealing a gap with the storage container above is installed on a side surface so as to be substantially parallel to a front surface of the storage room. 9. A refrigerator having at least one storage chamber through which cool air for cooling the inside of the refrigerator circulates, wherein the storage chamber has an inner surface except for a front surface of the storage chamber or an outer wall of a box of the refrigerator or between the storage chambers. A plurality of vertically arranged storage compartments that are partitioned by an arranged partition wall, the front surface is sealed with a door, and at least a frozen storage compartment included in the storage compartment is taken in and out of one or more of the doors in the front-rear direction. In the refrigerator comprising: a storage container, wherein the frozen storage compartment is formed between the upper and lower sides of each of the storage containers, wherein a cold air return port for recovering the cold air that has exited the storage containers after the internal cooling of each of the storage containers is completed. And at least one of the gaps is disposed on the inner surface of the storage chamber inside the storage chamber, and between the cold air return port and the upper surface of the storage container immediately below the cold air return port. Storage room front members And a partition plate with an opening provided at a position near the front of the storage chamber and provided with an opening, and the opening is provided between the cold air return port and the bottom surface of the storage container immediately above the cold air return port. An upper partition plate, which is slightly shorter in length than the attached partition plate, is provided, and a cold air outflow path is formed near the front surface of the storage container above and from below the storage container to the outside of the container. A refrigerator characterized by being. 10. A refrigerator having at least one storage room for circulating cool air for cooling the inside of the refrigerator, wherein the storage room has an inner surface except for a front surface of the storage room, or an outer wall of a box of the refrigerator or between the storage rooms. A plurality of vertically arranged storage compartments that are partitioned by an arranged partition wall, the front surface is sealed with a door, and at least a frozen storage compartment included in the storage compartment is taken in and out of one or more of the doors in the front-rear direction. In the refrigerator comprising: a storage container, wherein the frozen storage compartment is formed between the upper and lower sides of each of the storage containers, wherein a cold air return port for recovering the cold air that has exited the storage containers after the internal cooling of each of the storage containers is completed. A partition duct is disposed on the inner surface of the storage chamber inside at least one of the gaps, and extends slightly to the front of the storage chamber front member to open and communicate with the cool air return port.
And the partition duct is separated from the bottom surface of the upper storage container and the upper surface of the lower storage container facing the upper surface and the lower surface of the partition duct, and the storage chamber side surface facing the partition duct side surface. And a protruding portion for sealing a gap between the storage container and a cold air outflow path is formed near the front surface of the storage container above the cold air return port and communicates downward from inside the storage container to outside the container. A refrigerator comprising: 11. A refrigerator according to claim 10, wherein a rectifying plate extending from the front member of the storage room to near the front surface of the partition duct is provided between the upper surface and the lower surface of the partition duct. . 12. The partition according to claim 10, wherein the partition is located at a position slightly closer to the inner surface than the front surface of the partition duct and opposed to a bottom surface and a side surface of the storage container above the upper surface of the partition duct. A refrigerator, wherein a vertical peripheral sealing member for sealing a gap with the storage container is provided on the upper surface of the duct and the side surface of the storage room so as to be substantially parallel to the front surface of the storage room.